Investigative field notes are primarily taken at which location or moment?

• A. Interview room
• B. Crime scene, starting at arrival
• C. Police station after processing
• D. In the vehicle during transport

Answer: (B)

Field notes are a contemporaneous record of what you observe and do in the field, starting from the moment you arrive at the scene and continuing as you document the investigation. This is best done at the crime scene beginning with arrival because it captures initial conditions—layout, lighting, weather, position of items, and the sequence of events—as they unfold, preserving an accurate timeline and context for later reports. Notes taken at the scene help maintain the integrity of the information and serve as a defensible basis for decisions and actions taken during evidence collection.

Interviews conducted in an interview room focus on statements and questions rather than the immediate field observations, so they aren’t the primary place to capture initial findings. Records created at the police station after processing miss the dynamic conditions present at the scene and can introduce gaps or inconsistencies. Notes kept in a vehicle during transport are vulnerable to distraction and memory decay, making them unreliable for establishing how the scene appeared and what was observed first.

By starting at arrival at the crime scene, field notes provide a precise, time-stamped account that supports the entire investigation from the outset.